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About Us

My name is Brian Macy. I'm a full-time EFI tuner, problem solver, and I supply parts to people running everything from street rods to offshore marine power boats.

I've also worked as an instructor and trainer, teaching people how to tune. My background is in engineering, welding, and industrial machining.

The EFI Store Novas at the shop

The EFI Store Novas — still making passes today.

From a Hobby to Profession.

My whole life has been in search of horsepower and good-running engines. It all started as a hobby in high school with my 1966 Chevy Chevelle, which had a 327 and a Powerglide transmission.

Later, when I got married to my wife Heather, I bought a '66 Nova with a 350 and a small kit of nitrous. It was already tubbed — we were in the '90s, after all. The car ran a 12.50 quarter mile and we had a ton of fun with it. Over the years we raced the Nova and it went faster every year.

The car really started to go fast when we decided to turbo it. I had spent some time learning computers back in the Windows 3.11 days, and that looked like it would make this fuel injection stuff easier. At the time there were only a handful of people in the US doing EFI tuning. I took the plunge and taught myself how to tune EFI. It was a long process with little to no help and no one to ask questions — there just wasn't anyone to help.

In 2004, the new EFI engine in the Nova hit a personal best of 7.70 at 188 mph in the quarter mile. That produced a lot of phone calls from people who wanted EFI and turbos.

In 2006, I left my engineering job at the Washington State Department of Transportation to focus on Horsepower Connection full time. We kept running the Nova up and down the West Coast, then in 2004 we started The EFI Store brand and our online store. From there, Horsepower Connection and The EFI Store have both grown beyond my expectations.